.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.app-header {
  text-align: center;
  margin-bottom: 30px;
}

.app-title {
  font-size: 2.5rem;
  color: #2196F3;
  margin-bottom: 10px;
}

.app-description {
  font-size: 1.2rem;
  color: #666;
}

.error-message {
  background-color: #ffebee;
  color: #f44336;
  padding: 10px;
  border-radius: 4px;
  margin: 20px 0;
  text-align: center;
}

.loading {
  text-align: center;
  padding: 40px;
  font-size: 18px;
  color: #666;
}